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Volcanic haze reaches RP again
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Posted on Jun 03 2005
Ash plume from Anatahan’s volcano again reached the Philippines as volcanic activity continued to fluctuate and increase slightly in magnitude yesterday morning.
In a joint report, the U.S. Geological Survey and the Emergency Management Office said thin ash and volcanic smog extended from the volcano’s summit to 825 nautical miles west on the edge of the Philippines.
Ash emissions continued yesterday, with the plumes rising to altitudes of up to 10,000 feet. The agencies said the plume extended about 325 nautical miles to the west-northwest.
The EMO cautioned aircraft that conditions could change rapidly, advising aircraft to pass upwind of Anatahan or beyond 10 nautical miles downwind from the island and reminding them to exercise due caution within 10 nautical miles.
Last April 6, the volcano suddenly unleashed its fury and recorded its strongest historical eruption that spewed ash some 50,000 feet into the air. The USGS said the volcano expelled about 50 million cubic meters of ash in that eruption.
The USGS and the EMO said yesterday morning that seismicity on Anatahan rose slightly. Several hours before this development, tremor levels on Anatahan reportedly declined. (John Ravelo)
